Yusuf, V. A. J.; Soeratri, W.; Erawati, T. The Effect of Surfactant Combination on the Characteristics, Stability, Irritability, and Effectivity of Astaxanthin Nanoemulsion As Anti-Ageing Cosmetics: Http: www.doi.org 10.26538 Tjnpr V7i12.21. TJNPR 2023, 7 (12), 5509-5518.